Yes, I have the preview device setting correct. I now think this is a Black Magic issue- the latest drivers- 5.6- seem to be incompatible with my system, which is a bit older, and not up to the latest specs. I haven’t tried it with Vegas yet, but I just succeeded in getting Premiere Pro 1.51 to work correctly, by reinstalling the previous BMD drivers -5.5.1-. I have eliminated Vegas from this system in the process, to make sure Vegas and Premiere don’t conflict with each other, and since Vegas can’t retain the source clip timecode using BMD capture from analog sources, I will do this project with Premiere. Thanks for your reply.